MIME Multipart Boundary and Preamble Properties

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Demonstrates the Boundary property, which gets or sets the raw boundary token of a multipart entity (without surrounding quotation marks), and UseMmDescription, which controls whether the conventional preamble text is emitted when serializing a multipart entity.

import sys
import chilkat

success = False

mime = chilkat.CkMime()

#  Create a multipart/mixed entity.
success = mime.NewMultipartMixed()
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

#  Boundary is the raw boundary token, without surrounding quotation marks.  Chilkat quotes it
#  automatically in the serialized header when required.
mime.put_Boundary("example-boundary")

#  UseMmDescription controls whether the conventional preamble text
#  "This is a multi-part message in MIME format." is emitted.  The default is False.
mime.put_UseMmDescription(True)

#  Add a simple part so the multipart has content.
part = chilkat.CkMime()
success = part.SetBodyFromPlainText("First part.")
if (success == False):
    print(part.lastErrorText())
    sys.exit()

success = mime.AppendPart(part)
if (success == False):
    print(mime.lastErrorText())
    sys.exit()

print("Boundary = " + mime.boundary())

mimeStr = mime.getMime()
if (mime.get_LastMethodSuccess() == False):
    print(mime.lastErrorText())
    sys.exit()

print(mimeStr)